作者:Katja Krämer、Uli Kazmaier
DOI:10.1021/jo061362d
日期:2006.11.1
Chelated amino acid ester enolates are excellent nucleophiles for allylic alkylations. With these enolates, even terminal π-allyl palladium complexes react without significant isomerization. This allows a transfer of the cis-olefin geometry from the substrate into the product. Chiral substrates also show a reasonably good 1,5-induction.
螯合的氨基酸酯烯醇盐是烯丙基烷基化的优良亲核试剂。对于这些烯醇化物,即使末端的π-烯丙基钯配合物也反应而没有明显的异构化。这允许顺式烯烃几何结构从底物转移到产物中。手性底物也显示出相当好的1,5-诱导。